Paper-making machine



July 10, 1928. 1,676,655

., w. A. LORENZ PAPER MAKING MACHINE Filed Feb. 2, 192'? 5 Sheets-Sheet l or F W- n A r& 1 FEEL Q .4. I p

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W. A. LQRENZ PAPER MAKING MACHINE Filed Feb. 2, 1927 3 sheets-sheet 2 5MV01; wmm axwvg July 10, 1928.

W. A. LORENZ PAPER MAKING MACHINE Filed Feb. 1927 3 Sheets-Sheet 3 Patented July 10, 1928. g

UNITED 'srATEs 1,676,655" {PATENT mm;

wmnnm A. Loamrz, or wear man-can, comcrxcu'r, Assreuoa we run 0mm FABRIC COMPANY, OF .HECTICU '1.

wnsr nan-moan, couunc'rrcu'r, a coaroaa'rrou or conrune-mine momma.

Application filed February a, 1927. serial No. 163,432.

This'iinvention relates to apparatus for producing paper which is lon itudinally corrugated and transversely cri ed at ntervals. v

The aim of the invention is to provide an im roved and sim le apparatus by means of WhlCh paper longitudinally corrugated and transversely crinkled at intervals may be economically produced.

A further aim of the invention is to provide an improved machine whereby paper of this sort may be roduced without interrupting the operatlon'of the machine and thes e rolls is corrugfted as illustrated so as,

wherein the intervals at which the cross 1 crinkling is done may be varied at will.

Other objects will be in art obvious and in part pointed out more 1n detail hereinafter.

' The invention accordingly consists in the I have shown, for illustrative purposes, one

embodiment which the "may take:

Figure 1 is a plan view of the apparatus;

Fig. 2 is a sectional view taken substantially on line 22 of Fig. j

Fig. 3 is a front elevation, one at the corrugating rolls being removed; j

Fig. 4is an'enlarged view with a portion of the doctor 'b'lade and. associated corrugated cylinder;

Fig. 5 is a sectional view taken on hne 55 ofFig. 4;

Fig. 6 is a view similar to Fig. 4, but showing the doctor blade at a different angle with respect to the cylinder;

' Fig. 7 is a sectional view taken substantially on line 7-7 of Fig. 6; and

Fig. 8 is a view of a strip of paper which present invention has been corrugated and crinkled by this macorrugated so as to providealternate circum- Referring to the drawings in detail, the

manner, the driving means not being shown 1n thepresent instance. Associated with the main cylinder -11 is a doctor blade 20, the construction of which will be described hereinafter more in detail. Associated ith the main cylinder 11 are a pain'of co 'ugated rolls, one of these. rolls 21 being referably positioned behind the cylinder, and the other one 22 in front of the cylinder. Each of to mesh, so to spea with the corrugations of the. main cylinder, whereby the paper which passes between the main cylinder and the rol s is corrugated? The rolls 21 and 22 are similarly mounted in pivoted levers 23, the horizontal arms of which are provided with adjustable weights 24. These weights 7 cause the rolls to press against the main cylinder. Movement of the rolls towards the cylinder maybe adjustably limited by the screws 25.

In carrying out the present invention, either finished pa er that is wetted or a wet web of pulp w ie is delivered from a web forming machine may be operated upon. In thepresent instance, I have shown the web operated upon as designated by the letter A. This. web may be laid onto the under side of an endless belt 26 and passes upwardly, as at 27, from the belt to the cylinder 11. It

'is first pressed against the cylinder by the roll 21, whereby the web is longitudinally corrugated. The web asses to the top of the cylinder and is presse against the cylinder at the front portion thereof by the rolls 22. The cylinder then carries the web down to the doctorblade which strips the paper from the cylinder and lays it onto a belt 29. The rolls 21 and 22 are fixed on shafts 17 which carry gears 18 meshing with-the gear 15.

The present invention relates more specifically to the arrangementof the doctor blade 20. This doctor blade, as shown most clearly in Figs. 4 to 7, has a serrated edge so as to form teeth 30, so to speak, which project into th e grooves 13 of the crinkling cylinder The spaces 31 between the teeth or projections 30,are relatively long and, preferably, the teeth are inclined rearwardl away from the cylinder, as indicated in Flg. 5 so that the doctor blade may be rocked or adjusted 35 adapted to ride against the periphery is fixed an arm 34 carrying a pin or rolle;

i a cam 36. This cam is secured to one end rugations portions are designated by the numeral 50,-

of the shaft 14 and on which shaft the maincylinder 11 is fixed. The arm 34 is'urged by a spring 37 in a direction to maintain the pin 35 against the'peripher of the cam 36. The cam 36 is secured in p ace by a key 38 and a nut 39. i

The operation of the machine is briefly as follows: The web passes upwardly, as at 27, from the belt or blanket 26 and onto the crinkling cylinder 11. Owing to the coron the rolls 21 and 22 and the crinkling cylinder 11, the paper is corrugated in the direction of its length and the rolls cause the web to adhere to the crinkling cylinder. By adjusting the wei hts 24, the desired degree of pressure may e maintained against the web on the cylinder. The cylinder carries the web against the doctor blade 20 which strips the web from the cylinder and lays it onto the receiving belt 29. The cam 36 changes the angularity of the doctor blade with respect to the crinkling cylinder at predetermined times so that, for certain length, the web is stripped from the cylinder without crinkling those lengths and, at intervening lengths, the paper is cross crinkled. More particularl when the pin 35 engages the portion of arger radius of the cam 36, the doctor blade is at the angle shown in Figs. 2 4 and 5 with the result that the paper is crushed against the doctor blade and crinkled. When the pin 35 engages the portion of smaller radius of the cam 36, the doctor blade is more tangentially arranged with respect to the cylinder, as shown in Figs. 6 and 7, with the result that the paper is stripped from the cylinder but is not crinkled. Obviousl a number of interchangeable cams may he provided so as to vary the lengths of crinkled and uncrinkled portions of the paper and also to vary the degree to which the crinkled portions are creped.

The resulting paper is shown most clearly in Fig. 8. The corrugated and uncrinkled and the corrugated and cross crinkled portions are designated by the numeral 51. The spacing of the crinkled portions may be varied, of course, to suit requirements.

' This paper may be used to advantage in forming barrel linings of the type illustrated in my application Serial'No. 38,701, filed June 22, 1925, and wherein is disclosed a barrel lining having a longitudinally corrugated body portion 'and corrugated and crinkled end portions.

A barrel lining of this type has a relatively stiff body portion so that it will not collapse when placed in the barrel while, at the same time, the body portlon may expand radially when the contents are poured thereinto. The end portlons, being corrugated'and cross crinkled, are flexible in all directions so that they may be readily folded over to. constitute the bottom and the mouth of the lining. To form a hning of this sort, it is merely necessary to cut t e paper along the lines 52 and then fold the paper so as to bring the side edges thereof into engagement and paste these side edges together.

As many changes could be made in the aboue construction and many apparently widely different embodiments of this invent1on could be made without departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

It is also to be understood thatthe language used in the followin claims is intended to cover all of the generic and specific features of the invention herein described and all statements of the scope of the invention which, as a matter of language, might be said to fall therebetween.

I claim as my invention:

J 1. In a paper crinkling machine and in combination, a cylinder, a doctor blade supported for angular movement fromcne position to another, said blade in one position being adapted to crinkle the paper and strip the same from said cylinder, said doctor blade in its other position being adapted to strip the paper from said cylinder with out crinkling it and means for moving said doctor blade at intervals from one position to another whereby said paper is crinkled at intervals. V

2. In a paper crinkling machine and in combination, a cylinder, a doctor blade supported for angular movement from one position to another, said blade in one positlon being adapted to crinkle the paper and strip the same from said cylinder, said doctor blade in its other position being adapted to strip the paper from said cylinder without crinkling it, and a cam for moving said doctor blade at intervals from one position to another whereby said paper is crinkled at intervals.

3. In a paper crinkling machine and in combination, a cylinder, 9. roll for pressing the paper against the cylinder, a doctor blade provided with trunnions, bearings in which said trunnions are mounted, and a cam connected to said cylinder and adapted to rock said blade from one osition to an- 0tlllel whereby the paper is crinkled at interva s.

4. In a paper crinkling machine and in combination, a crinkling cylinder having circumferential corrugations, a doctor blade having a serrated edge cooperating with the periphery of said cylinder, said blade being mounted for movement from one position to another with respect to said cylinder, and means for moving said doctor blade at intervals.

5. In a paper crinkling machine and in combination, a crinkling cylinder provided with circumferential corrugations, means for pressing the paper against said cylinder and thereby corrugating the same, a serrated doctor blade cooperating with said cylinder, said blade being mounted for rock-v ing movement from one position to another, said blade in one position crinkling said paper and in the other position stripping the paper from the cylinder without crinkling t blade at intervals. 7

WILLIAM A. LORENZ.

e same, and a cam for rocking said go 

